Sync config, include and libiberty with GCC

config/

2020-06-24  H.J. Lu  <hongjiu.lu@intel.com>

	Sync with GCC
	2020-05-29  H.J. Lu  <hjl.tools@gmail.com>

	PR bootstrap/95413
	* cet.m4: Replace save_CFLAGS and save_LDFLAGS with
	cet_save_CFLAGS and cet_save_LDFLAGS.

include/

2020-06-24  H.J. Lu  <hongjiu.lu@intel.com>

	Sync with GCC
	2020-06-23  Nick Alcock  <nick.alcock@oracle.com>

	* libiberty.h (bsearch_r): New.

	2020-04-17  Martin Liska  <mliska@suse.cz>
		    Jonathan Yong <10walls@gmail.com>

	PR gcov-profile/94570
	* filenames.h (defined): Do not define HAVE_DOS_BASED_FILE_SYSTEM
	for CYGWIN.

libiberty/

2020-06-23  Nick Alcock  <nick.alcock@oracle.com>

	* bsearch_r.c: New file.
	* Makefile.in (CFILES): Add bsearch_r.c.
	(REQUIRED_OFILES): Add bsearch_r.o.
	* functions.texi: Regenerate.

2020-05-29  H.J. Lu  <hjl.tools@gmail.com>

	PR bootstrap/95413
	* configure: Regenerated.

2020-05-15  Iain Buclaw  <ibuclaw@gdcproject.org>

	* d-demangle.c (dlang_attributes): Add @live attribute.
	* testsuite/d-demangle-expected: Add new tests.

2020-05-14  Rainer Schuetze  <r.sagitario@gmx.de>
	    Iain Buclaw  <ibuclaw@gdcproject.org>

	* d-demangle.c (enum dlang_symbol_kinds): Remove enum.
	(struct dlang_info): New struct
	(dlang_decode_backref): New function.
	(dlang_backref): New function.
	(dlang_symbol_backref): New function.
	(dlang_type_backref): New function.
	(dlang_symbol_name_p): New function.
	(dlang_function_type_noreturn): New function.
	(dlang_function_type): Add 'info' parameter.  Decode function type
	with dlang_function_type_noreturn.
	(dlang_function_args): Add 'info' parameter.
	(dlang_type): Add 'info' parameter.  Handle back referenced types.
	(dlang_identifier): Replace 'kind' parameter with 'info'.  Handle back
	referenced symbols.  Split off decoding of plain identifiers to...
	(dlang_lname): ...here.
	(dlang_parse_mangle): Replace 'kind' parameter with 'info'.  Decode
	function type and return with dlang_type.
	(dlang_parse_qualified): Replace 'kind' parameter with 'info', add
	'suffix_modifier' parameter.  Decode function type with
	dlang_function_type_noreturn.
	(dlang_parse_tuple): Add 'info' parameter.
	(dlang_template_symbol_param): New function.
	(dlang_template_args): Add 'info' parameter.  Decode symbol parameter
	with dlang_template_symbol_param.  Handle back referenced values, and
	externally mangled parameters.
	(dlang_parse_template): Add 'info' parameter.
	(dlang_demangle_init_info): New function.
	(dlang_demangle): Initialize and pass 'info' parameter.
	* testsuite/d-demangle-expected: Add new tests.

2 files changed, 18 insertions, 8 deletions

diff --git a/config/ChangeLog b/config/ChangeLog
index 0e988b19c98..7dc11d684a4 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,12 @@
+2020-06-24  H.J. Lu  <hongjiu.lu@intel.com>
+
+	Sync with GCC
+	2020-05-29  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR bootstrap/95413
+	* cet.m4: Replace save_CFLAGS and save_LDFLAGS with
+	cet_save_CFLAGS and cet_save_LDFLAGS.
+
 2020-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 
 	Sync with GCC
diff --git a/config/cet.m4 b/config/cet.m4
index 2bb2c8a95ac..911fbd46475 100644
--- a/config/cet.m4
+++ b/config/cet.m4
@@ -7,13 +7,14 @@ GCC_ENABLE(cet, auto, ,[enable Intel CET in target libraries],
 	   permit yes|no|auto)
 AC_MSG_CHECKING([for CET support])
 
+# NB: Avoid nested save_CFLAGS and save_LDFLAGS.
 case "$host" in
   i[[34567]]86-*-linux* | x86_64-*-linux*)
     case "$enable_cet" in
       auto)
 	# Check if target supports multi-byte NOPs
 	# and if assembler supports CET insn.
-	save_CFLAGS="$CFLAGS"
+	cet_save_CFLAGS="$CFLAGS"
 	CFLAGS="$CFLAGS -fcf-protection"
 	AC_COMPILE_IFELSE(
 	 [AC_LANG_PROGRAM(
@@ -27,7 +28,7 @@ asm ("setssbsy");
 	  ])],
 	 [enable_cet=yes],
 	 [enable_cet=no])
-	CFLAGS="$save_CFLAGS"
+	CFLAGS="$cet_save_CFLAGS"
 	;;
       yes)
 	# Check if assembler supports CET.
@@ -64,7 +65,7 @@ AC_MSG_CHECKING([for CET support])
 case "$host" in
   i[[34567]]86-*-linux* | x86_64-*-linux*)
     may_have_cet=yes
-    save_CFLAGS="$CFLAGS"
+    cet_save_CFLAGS="$CFLAGS"
     CFLAGS="$CFLAGS -fcf-protection"
     case "$enable_cet" in
       auto)
@@ -93,7 +94,7 @@ asm ("setssbsy");
 	 [AC_MSG_ERROR([assembler with CET support is required for --enable-cet])])
 	;;
     esac
-    CFLAGS="$save_CFLAGS"
+    CFLAGS="$cet_save_CFLAGS"
     ;;
   *)
     may_have_cet=no
@@ -101,9 +102,9 @@ asm ("setssbsy");
     ;;
 esac
 
-save_CFLAGS="$CFLAGS"
+cet_save_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -fcf-protection=none"
-save_LDFLAGS="$LDFLAGS"
+cet_save_LDFLAGS="$LDFLAGS"
 LDFLAGS="$LDFLAGS -Wl,-z,ibt,-z,shstk"
 if test x$may_have_cet = xyes; then
   # Check whether -fcf-protection=none -Wl,-z,ibt,-z,shstk work.
@@ -159,6 +160,6 @@ if test x$enable_cet = xyes; then
 else
   AC_MSG_RESULT([no])
 fi
-CFLAGS="$save_CFLAGS"
-LDFLAGS="$save_LDFLAGS"
+CFLAGS="$cet_save_CFLAGS"
+LDFLAGS="$cet_save_LDFLAGS"
 ])